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2d speckle tracking

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https://www.readbyqxmd.com/read/28332215/effects-of-increased-left-ventricular-wall-thickness-on-the-myocardium-in-severe-aortic-stenosis-with-normal-left-ventricular-ejection-fraction-two-and-three-dimensional-multilayer-speckle-tracking-echocardiography
#1
Eun Jeong Cho, Sung-Ji Park, Eun Kyoung Kim, Ga Yeon Lee, Sung-A Chang, Jin-Oh Choi, Sang-Chol Lee, Seung Woo Park
BACKGROUND: The aim of this study was to determine the capability of real time three-dimensional echocardiography (RT3DE) and two-dimensional (2D) multilayer speckle tracking echocardiography (MSTE) for evaluation of early myocardial dysfunction triggered by increased left ventricular (LV) wall thickness in severe aortic stenosis (AS) with normal LV ejection fraction (EF≥55%). METHODS: Conventional, RT3D STE and 2D MSTE were performed in 45 patients (mean 68.9±9...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28315942/forgotten-right-ventricle-in-pediatric-dilated-cardiomyopathy
#2
Hala Mounir Agha, Hossam Ibrahim, Inas Abd El Satar, Naglae Abd El Rahman, Doaa Abd El Aziz, Zeinab Salah, Sonia El Saeidi, Fatma Mostafa, Wael Attia, Mohamed Abd El Rahman, Gaser Abd El Mohsen
To evaluate the right ventricular (RV) function in relation to that of the left ventricle (LV) in patients with dilated cardiomyopathy (DCM). Echocardiographic examination was done using tissue Doppler imaging (TDI) and two-dimensional speckle tracking echocardiography (2D-STE) for 32 pediatric patients with DCM comparing them to another 32 normal matched controls. The global longitudinal strain (GLS) derived from 2D-STE was used to reflect the LV systolic function. Tricuspid annular plan systolic excursion (TAPSE) and the following RV TDI derived indexes: peak systolic velocity (S'), peak early diastolic velocity E', peak late diastolic velocity A', isovolumic acceleration (IVA) and myocardial performance index (MPI) were measured...
March 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28314925/evaluation-of-left-ventricular-functions-in-patients-with-primary-hyperparathyroidism-is-there-any-effect-of-parathyroidectomy
#3
Alper Kepez, Mehmet Yasar, Murat Sunbul, Cigdem Ileri, Oguzhan Deyneli, Bulent Mutlu, Osman Yesildag, Yelda Basaran
PURPOSE: Our aim was to evaluate left ventricular (LV) systolic and diastolic functions of primary hyperparathyroidism (pHPT) patients with detailed echocardiographic analysis and investigate the effect of parathyroidectomy on echocardiographic parameters. METHODS: A total of 22 eligible consecutive patients with pHPT who underwent parathyroidectomy operation were recruited to the study. Another 22 subjects with similar age, gender and frequency of cardiovascular risk factors compared to patients were used as a control group...
March 17, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28287029/gender-influence-on-the-adaptation-of-atrial-performance-to-training
#4
Laura Sanchis, Maria Sanz-De La Garza, Bart Bijnens, Genevieve Giraldeau, Gonzalo Grazioli, Josefa Marin, Luigi Gabrielli, Silvia Montserrat, Marta Sitges
BACKGROUND: High-intensity training has been associated with atrial remodelling and arrhythmias in men. Our purpose was to analyse atrial performance in female endurance athletes, compared to male athletes and controls. METHODS: This was a cross-sectional study. We included four groups: female athletes, females controls, male athletes and male controls. Left (LA) and right atrial (RA) volumes and function were assessed using 2D and speckle-tracking echocardiography to determine peak atrial strain-rate at atrial (SRa) and ventricular contraction (SRs), as surrogates of atrial contractile and reservoir function, respectively...
March 13, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28258851/longitudinal-2d-strain-can-help-diagnose-coronary-artery-disease-in-patients-with-suspected-non-st-elevation-acute-coronary-syndrome-but-apparent-normal-global-and-segmental-systolic-function
#5
Thibault Caspar, Hafida Samet, Mickaël Ohana, Philippe Germain, Soraya El Ghannudi, Samy Talha, Olivier Morel, Patrick Ohlmann
BACKGROUND: The clinical work-up of patients presenting with chest pain is a diagnostic challenge. We investigated the diagnostic performance of global (GLS) and territorial (TLS) longitudinal strain to predict coronary artery disease (CAD) in patients presenting with suspected non-ST-segment elevation acute coronary syndrome (NSTE-ACS) but apparent normal global and regional systolic function. METHODS: 150 consecutive suspected NSTE-ACS patients were initially screened for inclusion ; 58 patients with normal LVEF (≥55%) and WMSI (=1) were prospectively enrolled...
February 22, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28255826/assessment-of-biventricular-systolic-strain-derived-from-the-two-dimensional-and-three-dimensional-speckle-tracking-echocardiography-in-lymphoma-patients-after-anthracycline-therapy
#6
Fei-Yan Song, Jing Shi, Ye Guo, Chu-Jie Zhang, Yu-Chen Xu, Qun-Ling Zhang, Xian-Hong Shu, Lei-Lei Cheng
The aim of this study was to investigate the usefulness of three-dimensional (3D) speckle tracking echocardiography (STE) for assessment of both left and right ventricular systolic function in patients with lymphoma after anthracycline chemotherapy, compared with two-dimensional (2D) STE. Totally eighty-nine patients undergoing anthracycline containing chemotherapy were studied. Echocardiographic assessment included 2D and 3D left ventricular (LV) global longitudinal strain (GLS), global circumferential strain (GCS) and right ventricular (RV) GLS...
March 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28220351/two-dimensional-speckle-tracking-echocardiography-demonstrates-no-effect-of-active-acromegaly-on-left-ventricular-strain
#7
I C M Volschan, L Kasuki, C M S Silva, M L Alcantara, R M Saraiva, S S Xavier, M R Gadelha
BACKGROUND: Speckle tracking echocardiography (STE) allows for the study of myocardial strain (ε), a marker of early and subclinical ventricular systolic dysfunction. Cardiac disease may be present in patients with acromegaly; however, STE has never been used to evaluate these patients. OBJECTIVE: To evaluate left ventricular (LV) global longitudinal strain in patients with active acromegaly with normal LV systolic function. DESIGN: Cross-sectional clinical study...
February 20, 2017: Pituitary
https://www.readbyqxmd.com/read/28210715/feasibility-and-reproducibility-of-two-dimensional-wall-motion-tracking-wmt-in-fetal-echocardiography
#8
Christian Enzensberger, Friederike Achterberg, Jan Degenhardt, Aline Wolter, Oliver Graupner, Johannes Herrmann, Roland Axt-Fliedner
Objective The primary objective of this study was to determine the feasibility and reproducibility of 2-dimensional speckle tracking imaging based on the wall motion tracking (WMT) technique in fetal echocardiography. The secondary objective was to compare left and right ventricular global and segmental longitudinal peak strain values. Methods A prospective cross-sectional study was performed. Global and segmental longitudinal peak strain values of the left ventricle (LV) and right ventricle (RV) were assessed prospectively...
February 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28188931/percutaneous-left-atrial-appendage-closure-improves-left-atrial-mechanical-function-through-frank-starling-mechanism
#9
Augustin Coisne, Rosario Pilato, François Brigadeau, Didier Klug, Christelle Marquie, Zouheir Souissi, Marjorie Richardson, Stéphanie Mouton, Anne-Sophie Polge, Patrizio Lancellotti, Dominique Lacroix, David Montaigne
BACKGROUND: Modifications in left atrial (LA) flow velocities after left atrial appendage (LAA) exclusion have been shown in animal and ex vivo models. In a substudy of PROTECT AF (Percutaneous Closure of the Left Atrial Appendage Versus Warfarin Therapy for Prevention of Stroke in Patients With Atrial Fibrillation), an objective improvement in quality of life was observed after LAA closure. OBJECTIVE: The purpose of this study was to investigate the impact of LAA closure on LA transport function...
February 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28168563/right-atrial-strain-is-predictive-of-clinical-outcomes-and-invasive-hemodynamic-data-in-group-1-pulmonary-arterial-hypertension
#10
Nicole M Bhave, Scott H Visovatti, Brian Kulick, Theodore J Kolias, Vallerie V McLaughlin
Transthoracic echocardiography (TTE) is a practical and widely used tool for risk stratification in pulmonary arterial hypertension (PAH). We hypothesized that right atrial (RA) reservoir function, represented by peak RA systolic strain, correlates with invasive hemodynamic measurements and clinical outcomes in PAH. Patients with group 1 PAH who had TTE within 6 months of index PAH clinic visit and right heart catheterization were included in this retrospective study. Peak RA strain in the 2D apical 4-chamber view was measured with speckle-tracking software...
February 6, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28166493/a-gpu-accelerated-3d-coupled-sub-sample-estimation-algorithm-for-volumetric-breast-strain-elastography
#11
Bo Peng, Yuqi Wang, Timothy J Hall, Jingfeng Jiang
Our primary objective of this work was to extend a previously published 2D coupled sub-sample tracking algorithm for 3D speckle tracking in the framework of ultrasound breast strain elastography. In order to overcome heavy computational cost, we investigated the use of a graphic processing unit (GPU) to accelerate the 3D coupled sub-sample speckle tracking method. The performance of the proposed GPU implementation was tested using a tissue-mimicking (TM) phantom and in vivo breast ultrasound data. The performance of this 3D sub-sample tracking algorithm was compared with the conventional 3D quadratic subsample estimation algorithm...
January 31, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28161809/alteration-of-cardiac-deformation-in-acute-rejection-in-pediatric-heart-transplant-recipients
#12
Nitin Chanana, Charlotte S Van Dorn, Melanie D Everitt, Hsin Yi Weng, Dylan V Miller, Shaji C Menon
The objective of this study is to assess changes in cardiac deformation during acute cellular- and antibody-mediated rejection in pediatric HT recipients. Pediatric HT recipients aged ≤18 years with at least one episode of biopsy-diagnosed rejection from 2006 to 2013 were included. Left ventricular systolic S (SS) and SR (SSr) data were acquired using 2D speckle tracking on echocardiograms obtained within 12 h of right ventricular endomyocardial biopsy. A mixed effect model was used to compare cardiac deformation during CR (Grade ≥ 1R), AMR (pAMR ≥ 2), and mixed rejection (CR and AMR positive) versus no rejection (Grade 0R and pAMR 0 or 1)...
February 4, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28155065/left-atrial-strain-assessed-by-three-dimensional-speckle-tracking-echocardiography-predicts-atrial-fibrillation-recurrence-after-catheter-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#13
Atsushi Mochizuki, Satoshi Yuda, Takefumi Fujito, Mina Kawamukai, Atsuko Muranaka, Daigo Nagahara, Shinya Shimoshige, Akiyoshi Hashimoto, Tetsuji Miura
BACKGROUND: Several studies have shown the utility of left atrial (LA) function determined by two-dimensional or three-dimensional speckle tracking echocardiography (2D- or 3D-STE) for identifying patients with paroxysmal atrial fibrillation (AF). However, whether 3D-STE is applicable for prediction of the recurrence of AF after catheter ablation (CA) remains unknown. We examined whether any 3D-STE parameters are better than 2D-STE parameters for the prediction of AF recurrence. METHODS: Forty-two patients with paroxysmal AF (58 ± 10 years old, 69% male) underwent 2D- and 3D-STE within 3 days before first-time CA...
February 2, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28150401/evaluation-of-longitudinal-left-ventricular-function-in-patients-with-coronary-artery-ectasia-and-vitamin-d-deficiency-by-2d-speckle-tracking-echocardiography
#14
Hasan Aghajani, Mohsen Faal, Ali Hosseinsabet
OBJECTIVES: Coronary artery ectasia (CAE) is defined as the dilation of at least one segment of the coronary arteries that reaches at least 1.5 times the size of a normal neighboring segment. It has been shown that left ventricular (LV) diastolic function is impaired in patients with CAE. Also, it has been shown that LV function is impaired in vitamin D-deficient subjects compared with vitamin D-sufficient subjects and vitamin D deficiency is prevalent in CAE patients. We hypothesized that LV function is impaired in patients with CAE so we evaluated longitudinal LV myocardial function by 2D speckle tracking echocardiography (2DSTE) in patients with CAE and vitamin D deficiency without significant coronary artery stenosis and compared the results with those of subjects with vitamin D deficiency and near-normal coronary arteries...
March 2017: Echocardiography
https://www.readbyqxmd.com/read/28150084/value-of-three-dimensional-strain-parameters-for-predicting-left-ventricular-remodeling-after-st-elevation-myocardial-infarction
#15
Lin Xu, Xiaomin Huang, Jun Ma, Jiangming Huang, Yongwang Fan, Huidi Li, Jian Qiu, Heye Zhang, Wenhua Huang
This study was to evaluate the value of multi-directional strain parameters derived from three-dimensional (3D) speckle tracking echocardiography (STE) for predicting left ventricular (LV) remodeling after ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI) compared with that of two-dimensional (2D) global longitudinal strain (GLS). A total of 110 patients (mean age, 54 ± 9 years) after STEMI treated with primary PCI were enrolled in our study. At baseline (within 24 h after PCI), standard 2D echocardiography, 2D STE and 3D STE were performed to acquire the conventional echocardiographic parameters and strain parameters...
February 1, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28113368/a-comparison-between-compounding-techniques-using-large-beam-steered-plane-wave-imaging-for-blood-vector-velocity-imaging-in-a-carotid-artery-model
#16
Anne Saris, Hendrik Hansen, Stein Fekkes, Maartje Nillesen, Marcel Rutten, Chris de Korte
Conventional color Doppler imaging is limited, since it only provides velocity estimates along the ultrasound beam direction for a restricted field of view at a limited frame rate. High frame rate speckle tracking, using plane wave transmits, has shown potential for 2D blood velocity estimation. However, due to the lack of focusing in transmit, image quality gets reduced, which hampers speckle tracking. Although ultrafast imaging facilitates improved clutter filtering, it still remains a major challenge in blood velocity estimation...
September 7, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28100875/the-role-of-thiol-disulphide-homeostasis-in-anthracycline-associated-cardiac-toxicity
#17
Mustafa Topuz, Omer Şen, Mehmet Kaplan, Oguz Akkus, Ozcan Erel, Mustafa Gur
The aim of the present study was to evaluate whether the baseline thiol/disulfide state can predict the occurrence of anthracycline induced cardiac toxicity. A total of 186 cancer patients receiving anthracycline (doxorubicin)-based chemotherapy were enrolled. All patients underwent 2-dimensional (2D) speckle tracking echocardiography (STE) to determine their left ventricular ejection fraction (LVEF) and blood samples for measuring thiol forms were obtained before treatment and 4 weeks after completion of the chemotherapy...
February 7, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28095413/one-month-global-longitudinal-strain-identifies-patients-who-will-develop-pacing-induced-left-ventricular-dysfunction-over-time-the-pacing-and-ventricular-dysfunction-pavd-study
#18
Fozia Zahir Ahmed, Manish Motwani, Colin Cunnington, Chun Shing Kwok, Catherine Fullwood, Delvac Oceandy, Alan Fitchet, Grahame Kevin Goode, Matthew Luckie, Amir Masood Zaidi, Rajdeep Khattar, Mamas Andreas Mamas
BACKGROUND: Predicting which individuals will have a decline in left ventricular (LV) function after pacemaker implantation remains an important challenge. We investigated whether LV global longitudinal strain (GLS), measured by 2D speckle tracking strain echocardiography, can identify patients at risk of pacing-induced left ventricular dysfunction (PIVD) or pacing-induced cardiomyopathy (PICMP). METHODS: Fifty-five patients with atrioventricular block and preserved LV function underwent dual-chamber pacemaker implantation and were followed with serial transthoracic echocardiography for 12 months for the development of PIVD (defined as a reduction in LV ejection fraction (LVEF) ≥5 percentage points at 12 months) or PICMP (reduction in LVEF to <45%)...
2017: PloS One
https://www.readbyqxmd.com/read/28091872/impact-of-revascularization-of-coronary-chronic-total-occlusion-on-left-ventricular-function-and-electrical-stability-analysis-by-speckle-tracking-echocardiography-and-signal-averaged-electrocardiogram
#19
Yohei Sotomi, Atsunori Okamura, Katsuomi Iwakura, Motoo Date, Hiroyuki Nagai, Tomohiro Yamasaki, Yasushi Koyama, Koichi Inoue, Yasushi Sakata, Kenshi Fujii
The present study aimed to assess the mechanisms of effects of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) from two different aspects: left ventricular (LV) systolic function assessed by two-dimensional speckle tracking echocardiography (2D-STE) and electrical stability evaluated by late potential on signal-averaged electrocardiogram (SAECG). We conducted a prospective observational study with consecutive CTO-PCI patients. 2D-STE and SAECG were performed before PCI, and after 1-day and 3-months of procedure...
January 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28090258/echocardiographic-and-histologic-correlations-in-patients-with-severe-aortic-stenosis-influence-of-overweight-and-obesity
#20
Nydia Ávila-Vanzzini, Juan Francisco Fritche-Salazar, Nelva Marina Vázquez-Castro, Pedro Rivera-Lara, Oscar Pérez-Méndez, Humberto Martínez-Herrera, Mario Gómez-Sánchez, Alberto Aranda-Frausto, Héctor Herrera-Bello, María Luna-Luna, José Antonio Arias Godínez
BACKGROUND: Severe aortic stenosis (AS), leads to pathological left ventricular remodeling that may worsen with concomitant overweight and obesity (OW/O). METHODS: We aimed to prospectively analyze the impact of OW/O on ventricular remodeling in severe AS, by evaluating the percentage of intraendomyocardial fibrosis (PIEF) and the percentage of infiltrating intraendocardial lipid vacuoles (PIELV) and its relationship to global longitudinal strain (GLS) in patients with OW/O...
December 2016: Journal of Cardiovascular Ultrasound
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